231100213100 has 36 divisors (see below), whose sum is σ = 502356716904. Its totient is φ = 92279854080.

The previous prime is 231100212979. The next prime is 231100213139. The reversal of 231100213100 is 1312001132.

It is a super-2 number, since 2×231100213100² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1944902 + ... + 2060301.

Almost surely, 2^231100213100 is an apocalyptic number.

231100213100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231100213100 is an abundant number, since it is smaller than the sum of its proper divisors (271256503804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231100213100 is a wasteful number, since it uses less digits than its factorization.

231100213100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4005794 (or 4005787 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 231100213100 its reverse (1312001132), we get a palindrome (232412214232).

The spelling of 231100213100 in words is "two hundred thirty-one billion, one hundred million, two hundred thirteen thousand, one hundred".